A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5895-01-260-6769
NSN 4140-00-640-6811
NSN 5930-01-347-2425
NSN 7035-00-511-0076
NSN 5975-00-557-4648
NSN 6240-01-156-6886
NSN 6610-01-293-0644
NSN 5965-01-050-8447
NSN 5945-00-459-0826
NSN 5915-01-589-0171
NSN 6685-00-949-4829
NSN 5925-00-706-9975